Glass lamp



(No Model.) A D. C. RIPLEY. w' Glass Lamp.

Patented .luly'20,18180 qmbmsses. wveu'pw.

of@ M y MM UNITED STATES PATENT EErcEC DANIEL C. RIPLEY, OF PITTSBURG, PENNSYLVANIA.

GLASS LAM P.

SPECIFICATION forming part of Letters Patent No. 230,340, dated July 20, 1880.

Application filed May 14,1880. (No model.)

To all 'whom it may 'concern Be it known that I, DANIEL C. RIPLEY, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented new and useful Improvements in Glass Lamps 5 andI do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure l is a vertical section of my improved lamp. Fig. 2 is a view of the steln portion. Figs. 3 to 6 are views of detached. portions. Fig. 7 is a view of the stem-mold, and Fig. S is a view of the foot-mold.

My invention relates to that class of lamps having hollow glass stems; and it consists in the formation of a glass hollow steln in one piece with the cap or socket, and with a perforated diaphragm for the passage and support of the rod or bolt for attaching the bowl or foot to the stem, andin other details of construction, hereinafter more specifically set forth. '4

As heretofore constructed these lamps have a hollow stem made of a plain glass cylinder and connected with the bowl and foot by means of interposed contracted metallic rings, caps, or sockets, the whole being united by a bolt extending centrally through them.

To enable others skilled in the art to make and use my invention, I will now describe the method of making the Same.

The bowl a is of the usual construction. The stem b, with one of the sockets c, I form by pressing in a suitable two or more part mold, the socket portion c being' made of suitable shape. The mold d is provided with projections d,for forming the recesses c3 in the base-ring c?, anda central recess for forming a projection, c4. rIhe mold e is placed upon the mold-section d, and the stem with its base is pressed therein in the usual manner, the plunger ofthe mold being provided with a suitable point for forming thel projection c4. The footf is pressed in a suitable mold, m, and is provided with projectionsf, which fit into the recesses c3 when the parts are put together. lt'is made with a central hole,f2, which is formed by a projection upon the plunger. The stem is provided at its upper end with a c'ap or socket piece, g, of metal, and the bowl a is attached to a similar socket-piece, h, by means of plaster or in any other suitable manner. In the bottom of the socket-piece h is a nut, h', in which the bolt t' is screwed in making the attachment to the stem. Between the foot f and thebase c is a brass or other sheet-metal ring, n, for the purpose of giving finish to the lamp and ofpermitting the formation of a better joint between these parts, the said ring having suflicientspring to cause the parts to come snugly together when the bolt is screwed up tight. In the bowl portion of the foot is a light tlat casting, k, having a central recess, 7c', to receive the nut l. This central recess is provided with a hole for the passage of the bolt t'. Inl order to form the hole c5 for the passage of the bolt, the projection which is through by a suitable instrument. This forms a perforated diaphragm within the hollow stem and continuous therewith at the junction of thc stem and base, and said diaphragm serves to center and support the rod or bolt t', and prevent lateral displacement of the parts. The parts being placed in order, the nut Z is screwed onto the bolt, and secure them firmly together.

desired, be formed with the stem, and the lower socket made up of the metallic cap-pieces.

By this inven tion I am enabled to reduce the cost of the manufacture of these lamps greatly, as by pressing the stem and socketpiece I can form it for about the cost of forming the stenrpiece alone heretofore, while I save the brass socket-pieces that are now used at one end of the stem.

The hollow stem maybe ornamented in any vases or glassware, Sac., as by painting and baking in the picture or design upon either the inner or outer faces of it, or by decalcomanie, or by pasting pictures thereon.

I am aware that the stems and feet of lamps and like articles have heretofore been pressed in a single piece, and do not herein claim the same, for the reason that with such a construction the stems cannot be readily ornamented glass of contrasting colors, and I am also aware that the bowls, stems, and feet or bases It is evident that the upper socket may, if

and the feet and stems cannot be formed of pressed there by the plunger is knocked of the ways. known'for the ornamentation of 9o IOO of lamps and like articles have been formed in separate pieces for the purpose of ornamentation, and united by means of central rods and intermediate socket and cap pieces ot' metal, and do not herein claim the last-recited construction, for the reason that every additional metallic section employed in the construction ot this class of' lamps adds materially to the cost and labor of' manufacture and reduces the strength and solidity of the article; but

What l claim as my invention, and desire to secure by Letters Patent, is-

1. In a lamp or like article composed ofa bowl, stem, and foot or base, said parts being separable, the combination. with the bowl and DANIEL U. RIPLEY.

Vitnesses:

JAMES I-l. PORTE, T. B. KERK. 

